KIR2DL4 and neoplasm: After the adjustment for purity, MRPL12 had a remarkable positive correlation with KIR2DL4 of NK cells, IFNG of Th1 cells, and PDCD1, LAG3, and GZMB of T-cell exhaustion, whereas it exhibited a significant negative correlation with all gene markers of B cells, monocytes, tumor-associated macrophages (TAMs), M2 macrophages, neutrophils, and DCs (Table 3).